photophosphorylation

(noun)

The addition of a phosphate (PO43-) group to a protein or other organic molecule by photosynthesis.

Related Terms

Examples of photophosphorylation in the following topics:

  • Processes of the Light-Dependent Reactions

    • This process, called photophosphorylation, occurs in two different ways.
    • In non-cyclic photophosphorylation, cytochrome b6f uses the energy of electrons from PSII to pump hydrogen ions from the lumen (an area of high concentration) to the stroma (an area of low concentration).
    • In cyclic photophosphorylation, cytochrome b6f uses the energy of electrons from both PSII and PSI to create more ATP and to stop the production of NADPH.

  • Chemiosmosis and Oxidative Phosphorylation

    • It is also the method used in the light reactions of photosynthesis to harness the energy of sunlight in the process of photophosphorylation.

  • Essential Nutrients for Plants

    • Light energy is converted into chemical energy during photophosphorylation in photosynthesis; and into chemical energy to be extracted during respiration.